Clamping device



Jan- 13, 1931- w. K. ANDREW E'r Al. 1,788,652

CLAMPING DEVICE Filed Maron 22, 1926 ATTORNEY Patexvlted Jah. 13,193.1, l ofi i' relatively minor su;faceip'oiftonforf mach-im A n .ing operatoilsatgga poi-L1#Jv` relatively-distant from the. locatngurfgcegorportion, f of ffgreet lmpoifaneefthatl-no unbalanels l shfuld be sei;-v up byslipportsonolampswheh 'ere appliedto steadytherpovrtons elatvely, istzmt from'theflocetng Portionyendt is e.; f w. purpose, 0fl'heklinventonftfwoi diet tiOIlf Work piece; after.; Whhnwrfmore'hr 'Clamps 0r, fsupportsamey ibe slater epplled ab' f othezrpointson .the Work pecewithoubjqhe Dunn 'th Um:

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andrwhenf the 111115512517@ 'loesened hay-be 75 fr' y relative tofsaid base, offa lsecond clamp unit .including a first jawf movableto'engage a portion of saidworkpiece from one direction Y `when the work 4piecel is# in said position, a

second jawmovable about an axis at right angles to the direction of movement" of said,`

firstjaw whereby vto grip the work piece portion from theother direction, Aand. meansfor and clampia portion of said work piece from v one direction' whenthe work pleceis in saidsimultaneously moving each of said jaws to Y io I f and to fix -each of said jaw-s with saidbalse.V

gripthe work piece portion in said position 3. YIna clamping device, the combination "with a baseand a first clamp `'means adapted toy determine' andfix the position of `a work piece relative to said base, of a second clamp.V

means including a first j aw movable to engage position, a second jaw movable about a pluj rality of axes one of which is approxirnately Y parallel withand the other ofy which .map-

' i proximately at-right angles tothe direction ofy moveme tof the' first jaw, wherebythe second jawV may move about theorie or the other` of 'said axes :to conformy to the position ofthe work piece Eportion and to engageand clamp' it from the other direction, Vand means I for simultaneously "moving eachof said jaws l to clamp the work 4.' In a f to determiney and fix the position cfa; work piecefrel-ative to'said base, Yof a secondvclamp means including a first movable-ima" first direction' to engage a portion of saldwork piece when the workpiece 'is'in saidplosition, a-socketmember fixed with said basek andV providing `surface portions of substantially circular form in aplane parallel tothe movement of said first jaw, a second jaw havy ing opposite end'portionsjlitted to thecircullar form of said socket, said socket A.beingpcc-7*?, sitioned so that movement of the jaw withinf* thesocket 4will cause a portionv ofV the jaw to engage thelwork piece-portion V,1n adirection opposite to the engagement of the'irst jaw, and means forsimultaneously moving each 'You of said jaws to engage the work piece portion4 in said position and to clamp said'secondfjaw in said socket member. 'f v l 5. In a device ofthe nature disclosed the combination of clamp' means, includingfirst and second relatively movablev jaw `members f providing mutually reacting: pressure sur` faces, a sockety having surfaces substantially conforming to portions of a circle in a plane g parallelto the relative movement of said jaws, said'second j aw Vbeing provided with r.portions seating on' and complementary-.to vthe Vsurfaces of saidsocket whereby the jaw f isguided for movement about an axis coi n"` -cidingk with the tcenter of said circle,y 'and j j" `means for simultaneously establishing pres-V piece portion in posif' tion and to clamp each of said jaws .withglsaid"` 'Dbasey 1 f .f Pf j y 4;

`clamping device, the 'combinationkr with a base and a first clamp means adaptedV surebetwe'en said jaws andb'etweensalidsocket 1k e and the jaw portion seated thereon, whereby` y said jaws' arellocked together and lsaid secf member, 4

ond,jaw'is,simultaneously locked with said i y 16.1n'a'claniping device inclu'dingalbase-Vr` the'combinationfof a pluralityof jaws relai tively movable toward one another andto-Q gather bodily movableabout an axis trans-Y verse to the movement of the one jawtoward the other, Vand means associatedwith,said

basey for simulta'r'ieouslyy setting up `reach@ of said movements, whereby to, move said'jaws l kto conform to varying-positions of aportion of different-work pieces fixed with said base.

with a baseand fa first clamp unit adapted to determine and lix the position of awork piece 'i relative to said'base; of a plurality of other clamp unitseach'having a pluralitynofjaws respectively movable ftofxogrip. a vportion of `V when'the Work piece is' insaid positionpand ai. pluralityr` of manually operablel clamp levers respectively operable l* for. 'different clamp unitsA fon simultaneously adjusting i each4 of the jaws of vthe clamplunitiwith said `work piece on .opposite sides, thereof .whi'ch-the yleveris'associated -to engagethe j work piecefportionin said positionandy toV flclamp each'fjaw relative to said base, eachfof l [saidother clam'plunits being adapted to fix the position of the jaws thereof in accordance i with the-position ofthe work piecedete'rf/` mined by said first clamp unit.

Y 8. In aclamping device, thecombination witha base anda firstjc'lamp means including f e awork contacting portionxedwith saidy vbase'and adaptedto determine and fixrthe position of a workpiece relative to said base,

'of agrsecond clamp means includinga socket memberhaving a `jaw seat surface substa'n-- tiallyconformin'g to a portion yofthe surface `of asphere,'a first clamp jawvseated therein and having a centrally disposed-opening,. a

gse-cond clamp jawadjacent said rst clamp j aw and having'a slotted opening, saidjaws each beingprovided at V`adjacent endsjwithY no l workfzconta'cting surfaces. each'movable toward one another, said jaws beingalso *rela- V tively movable in another direction, stopsfor 'the relative positioning of said jawswhen f moved in said-other, direction, a stud'flxedv with'said member and passing ,throughl they Y openingsof said "jaws, la nutengaging :a

threaded ,endi ofsaid stud, and anequalizing vwasher disposed between .said` nut and thefy clamp jaw adjacent thereto. l

v In witness whereof wehavehereto affixed yPAULnanlurznv.

1 'Viso 7. In clamping'devicethecombinatlon 

